1200403131031 has 4 divisors (see below), whose sum is σ = 1292741833432. Its totient is φ = 1108064428632.

The previous prime is 1200403131019. The next prime is 1200403131043. The reversal of 1200403131031 is 1301313040021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1200403131019) and next prime (1200403131043).

It is a cyclic number.

It is not a de Polignac number, because 1200403131031 - 2¹⁹ = 1200402606743 is a prime.

It is a super-3 number, since 3×1200403131031³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200403131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46169351181 + ... + 46169351206.

It is an arithmetic number, because the mean of its divisors is an integer number (323185458358).

Almost surely, 2^{1200403131031} is an apocalyptic number.

1200403131031 is a deficient number, since it is larger than the sum of its proper divisors (92338702401).

1200403131031 is an equidigital number, since it uses as much as digits as its factorization.

1200403131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92338702400.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200403131031 its reverse (1301313040021), we get a palindrome (2501716171052).

The spelling of 1200403131031 in words is "one trillion, two hundred billion, four hundred three million, one hundred thirty-one thousand, thirty-one".